Indoor Air Quality (IAQ) studies in hospitals revealed that patients, workers, and visitors health and well-being were risked by various pollutants, which could lead to nosocomial infections. Insufficient preparedness of the healhcare provider could lead to a nosocomial infection during disaster, which also could lead to an outbreak disease. Both local and global healthcare provider preparedness will impact the handling of the epidemic. Government policy and regulation are very important primary and basic sources of information because they are mandatory to be applied as a part of national policy. IAQ is one of the exogenous factors that could lead to nosocomial infection. Hospital has to be responsive to handle disaster victim and prepared its strategy to handle its IAQ in an over usage condition during disaster. The complexity and sensitivity about this IAQ studies made the number of research in this area are very limited. Another regulation review had been done by National institute of Standards and Technology (NIST) in United States in order to find their preparedness of IAQ regulations during disaster. This study aimed to compile and analyze the regulation about IAQ in Indonesian hospital for the last 20 years, and find the Indonesian hospital preparedness facing disaster. Indonesian Regulation were searched and analyzed the policy output about indoor air pollutant, variables, and hospital standard milestones. Chronological issuance of this regulation was organized and compared the significance output from year to year. The chronological data shown a lot of improvement in term of comprehensiveness, and needs of improvement for the enforcement of the monitoring action. This study recommends the ministry of health to evaluate the IAQ in hospital regulation, and to support the development of the future regulation through a series of reliable researches.